Welcome to the forum. I am sorry that I still didn't find time to draw (and scan) picture from your question in Ice-mania forum.
Are you asking about European GZ? And how much power will you put on sub. Some perform better at low power, but they can't take a lot of power, and some are louder at extreme power.
No problem. I've put a sugestion about an enclosure on the forum. Have a look at it and tell me what you think.
Yes, I'm talking about the European GZ's. I'm not planning on upgrading the amp so it's gonna be 400Wrms/sub. That's when I use 4 ohm SVC's or 2 Ohm DVC's. Else it will be 350Wrms/sub.
posted
It's tuned to 35 Hz, which is what Cerwin Vega recommends, so it's a daily driving box. I would do an spl box with two ports cover up one for daily driving and use both for competition, if I had access to a meter so I could test the loudest frequency.
------------------ Street 1999 SPL : 135.6 dB
Possible Street 1-2 competitor in 2001
Equipment: 1 CV Vega 124 powered by 350 Watts of Phoenix Gold power all in a Volvo 244
[This message has been edited by khstrom (edited 03-30-2001).]
Posts: 546 | From: Vasa, Finland | Registered: Nov 1999
| IP: Logged |
posted
You think 60L would be big enough for an SPL enclosure? I'll use the Audiobahn i have now for daily driver and the other 2 12" will be for SPL only. So i guess that a slotloaded box will be best in my case. But yes, for your application that is a great idea.
------------------ Addicted to bass!
For now: 140.6 dB official dB-drag score (in a daily-driver enclosure!) Moving air with : one Audiobahn AW1200. Power: Autotek SX2300
Future: 2 x 12" in SPL enclosure. Any suggestions?
posted
I don't know really, but I think you could go a little bigger for an SPL box. But a box for 2 12 are about 120 L, and if you use a big slot port and lots of bracing then it's gonna be a lot bigger. It all depends on how much space you want to sacriface. I'm gonna make a new box and make a slot port, but have it tuned to the same frequency, so it's gonna be around 80 L after bracing, port and speaker displacement.
------------------ Street 1999 SPL : 135.6 dB
Possible Street 1-2 competitor in 2001
Equipment: 1 CV Vega 124 powered by 350 Watts of Phoenix Gold power all in a Volvo 244
[This message has been edited by khstrom (edited 03-30-2001).]
Posts: 546 | From: Vasa, Finland | Registered: Nov 1999
| IP: Logged |
posted
Bigger? D*mn! I have a very small car (Seat Ibiza)so i cann't make it bigger. The subs would be hitting against the back off the car otherwise. Would facing them up be a good idea?
Oh, I've tried some enclosures with WinISD. A box of 100L (for the 2 woofers)tuned to 48Hz with a port of 25cm by 7cm gave some realy good results. But WinISD gives strange results sometimes, so i'm nut sure if this box would give good results in real world. Do you know of any software (free ware) that gives some reliable results?
------------------ Addicted to bass!
For now: 140.6 dB official dB-drag score (in a daily-driver enclosure!) Moving air with : one Audiobahn AW1200. Power: Autotek SX2300
Future: 2 x 12" in SPL enclosure. Any suggestions?
posted
I have a hard time to believe to Vega could compare in SPL to the Kove or GZ. Of these woofers I know most about the GZ Hydro12, as I sell them....and also have 2 of them in my own car. Put these in a bandpass (20-30L + 80-100L) and start winning
------------------ Tom Olander / Atomic Sound E-mail: olander@atomicsound.net Web: www.atomicsound.net (WARNING! First page contains an X-Rated image!!!!) OFFICIAL DB-DRAGRACING SPONSOR IN FINLAND 2001.
Posts: 36 | From: Finland | Registered: Jan 2000
| IP: Logged |
posted
Winisd is one of the best freeware programs I know of. Winisd should give accurate results. I've heard good stuff about Kove and GZ, but since Vega is the only one out of these that I have tested, I can't say what's better.
------------------ Street 1999 SPL : 135.6 dB
Possible Street 1-2 competitor in 2001
Equipment: 1 CV Vega 124 powered by 350 Watts of Phoenix Gold power all in a Volvo 244
Posts: 546 | From: Vasa, Finland | Registered: Nov 1999
| IP: Logged |
You think the GZ will work in a 60L vented enclosure? I only can make a ±150L (outside volume!!) enclosure for 2 subs. So the enclosuer you suggested wouldn't fit into the car (for 2 woofers). Could 1 GZ with 800Wrms out-pound 2 Vega's with each getting 400Wrms? I don't think so. If I had the space there woudn't be a doubt, i would go for the GZ's, but i wondered if those GZ's would work in a 60l/sub enclosure and getting just 400Wrms each. I heard they are very powerhungry. Can you give me some T/S parameters for those Hydro's?
About the Kove's : I know these subs ROCK. But after checking their price in Germany, I have to conclude they don't fit into the budget. The KEW's do, but they are just 250Wrms. Can they handle 400Wrms?
khstrom,
The results (WinISD) for the Kove were better than the Vega's but, as I stated, they don't fit in the (small) budget. So, I think i'll have to go with the Vega's. The GZ's enclosure doesn't fit into the trunk, so that's no option too. (If Tom tells me they work better than the Vega's in 60L enclosure with 400W each I'll go with the GZ's.)
------------------ Addicted to bass!
For now: 140.6 dB official dB-drag score (in a daily-driver enclosure!) Moving air with : one Audiobahn AW1200. Power: Autotek SX2300
Future: 2 x 12" in SPL enclosure. Any suggestions?
posted
RHO, The 20-30L + 80-100L bandpass I suggested, is for 2 GZ Hydros, thus making it about 50-60L / woofer.
I don't think the Hydros are that powerhungry...of course you can put a lot of power on them, but they play good with about 300W/ea.
I haven't really that much experience with the Vega's so I don't know if two Hydros would be louder...but it seams very feasible. And one thing is sure: you can't break the Hydros as easy
Best regards,
------------------ Tom Olander / Atomic Sound E-mail: olander@atomicsound.net Web: www.atomicsound.net (WARNING! First page contains an X-Rated image!!!!) OFFICIAL DB-DRAGRACING SPONSOR IN FINLAND 2001.
Posts: 36 | From: Finland | Registered: Jan 2000
| IP: Logged |
posted
Now, that makes the choise a lot more difficult. I can get both woofers for the same price. In what kind of vented enclosure do you think these Hydro's will work best? I don't have that much experiance in making bandpass enclosures. Maybe you can give me some more info on how to do it best?
------------------ Addicted to bass!
For now: 140.6 dB official dB-drag score (in a daily-driver enclosure!) Moving air with : one Audiobahn AW1200. Power: Autotek SX2300
Future: 2 x 12" in SPL enclosure. Any suggestions?
posted
Bandpass is not that difficult to build. Biggest problem is exact dimensions. So if Tom already knows that this box will have good results, go for it. But he should also give you exact port dimensions. This is also very important for bandpass!
posted
Right! Don't have time to go have a look there. Shame.
I found that the Vega's perform even better in a smaller bandpass than the Hydro's. But those Hydro's have bigger powerhandling. I just don't trust WinISD for the full 100%.
I just can't decide.
------------------ Addicted to bass!
For now: 140.6 dB official dB-drag score (in a daily-driver enclosure!) Moving air with : one Audiobahn AW1200. Power: Autotek SX2300
Future: 2 x 12" in SPL enclosure. Any suggestions?
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